CN201001001Y - Optical cavity adjustable carbon dioxide laser - Google Patents
Optical cavity adjustable carbon dioxide laser Download PDFInfo
- Publication number
- CN201001001Y CN201001001Y CNU2006200989700U CN200620098970U CN201001001Y CN 201001001 Y CN201001001 Y CN 201001001Y CN U2006200989700 U CNU2006200989700 U CN U2006200989700U CN 200620098970 U CN200620098970 U CN 200620098970U CN 201001001 Y CN201001001 Y CN 201001001Y
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- Prior art keywords
- laser
- glass tube
- optical cavity
- carbon dioxide
- adjustable
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- Expired - Fee Related
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Abstract
The utility model provides an optical cavity adjustable carbon dioxide laser, which belongs to a laser technical field. The purpose of the utility model is to provide a metal sealed optical cavity adjustable glass tube laser, which is composed of a glass tube laser tube casing, an inner flange and an outer flange which can be adjusted, a metal seal ring, a laser output coupling mirror, a reflecting mirror, and an adjusting bolt, wherein the metal seal ring is arranged between the laser output coupling mirror and the reflecting mirror at the both ends of the glass tube laser tube casing and the tube mouth of the glass tube, the tube mouth of the glass tube is provided with an outer table edge, which is properly matched with the inner table edge of the inner circle of the adjustable inner flange, the table edge of the inner circle of the adjustable outer flange is properly matched with the outer circle edge of the laser output coupling mirror and the reflecting mirror, the inner flange and the outer flange which can be adjusted are fixed with the adjusting bolt. Because the metal seal ring has the certain elasticity, laser optics can be adjusted with accuracy, therefore making the laser obtained the optimum effect.
Description
Technical field
The utility model belongs to laser technology field, specifically utilizes the adjustable carbon dioxide laser of a kind of optical cavity, improves the performance of the following small-power glass tube of 500W carbon dioxide laser.
Background technology
Before the utility model proposes, the carbon dioxide laser of middle low power mainly contains two kinds now: a kind of diffusion cooling laser device of all-metal RF excited, another kind is glass tube carbon dioxide laser (hereinafter to be referred as the glass tube laser), and they all are to form gas by gas discharge to excite lasing.On these two kinds of lasers, laserresonator (hereinafter to be referred as optical cavity) is made up of two optical mirror slips, and one of them is a completely reflecting mirror, another is output coupling mirror.The combination property of preceding a kind of laser is relatively good, main feature is that the life-span is very long, can move more than 10000 hours continuously, substantially non-maintaining, major defect is to cost an arm and a leg, for example the carbon dioxide laser of the diffusion cooled RF of 50W excitation needs RMB more than 100,000 yuan, so global sales is not also broken through 20,000.The advantage of a kind of laser in back is that price is very low, and the price of the laser of a 50W is no more than 1000 yuan of RMB, but its life-span is short, and general stream time is 1000 hours, and also there are some problems in laser beam quality in addition.Although significant disadvantages is arranged, because the market demand is big, the glass tube laser has just surpassed 100,000 in the annual requirement of China.In addition, owing to connect the connection that belongs to different materials between two eyeglasses of the shell of glass tube laser and optical cavity, can not melt sealing-in, sealing difficulty is bigger.The main effect of eyeglass is to produce laser generation and separating atmospheric and laser gas, and leak rate must be very low.In general, the absolute gas pressure of glass tube laser is in the 2-5kPa scope, and laser just is difficult to steady operation after the leakage 0.05kPa.Because the material of laser lens is different with glass, and also plated the needed film of generation laser on the laser lens, be difficult to the sealing way of the high temperature melting of employing simple glass, therefore the eyeglass and the sealing between the glass shell of simple glass pipe laser are to stick with glue the technology that connects to finish, nearly all domestic and international product is not always the case, but a small amount of external product technology of valve alloy transition and glass welded seal.The gluing way that connects is simple, but problem is very outstanding: 1) leak rate height, and air enters laser easily; 2) thus glue is decomposed into organic gas voluntarily and forms murder by poisoning to laser gas under negative pressure and under the gas discharge environment; 3) preceding two kinds of effects and gas discharge and the triple role that produces decomposing gas makes the decline of glass tube laser performance until scrapping rapidly.Just because of this, have only 1000 hours the useful life of glass tube laser continuous operation, a spot ofly can reach 3000 hours.Abroad there is 5000 hours report in the life-span of the laser that uses on the engineering with Gas reclamation reduction way.
Obviously, sticking with glue the optical cavity that connects sealed glass pipe laser and be made up of two bonding eyeglasses of two ends, is uncontrollable.And the optical cavity of laser is to need to regulate, and has only adjusting just can reach the best and the highest optimum efficiency of power of beam quality.The bonding curing of eyeglass back is just inactive, is impossible even will reach optimum efficiency when just having solidified, and the simplest reason is that two surfaces of optical mirror slip can not absolute parallel, and the collimation before solidifying just can not reach desired level.After the bonding curing of eyeglass, run into variation optical cavities such as temperature, humidity, laser work condition and all will change, situation is in continuous deterioration, and it also is the not long one of the main reasons of present glass tube laser life-span that optical cavity changes.
The utility model content
At the relatively shorter shortcoming of glass tube laser life-span, the purpose of this utility model provides the glass tube laser that a kind of optical cavity of metallic seal can be regulated, metallic seal is the valid approach that obtains minimum leak rate, and this method can make the life-span of present glass tube laser prolong significantly.
To achieve these goals, the technical solution of the utility model is, the adjustable carbon dioxide laser of this optical cavity, it is by glass tube laser shell, in the scalable, outward flange, metal o-ring, the laser output coupling mirror, speculum, the adjusting bolt is formed, between glass tube laser shell two ends laser output coupling mirror and the speculum and the glass tube mouth of pipe, be provided with metal o-ring, the glass tube mouth of pipe is provided with outer edge of table, and with adjustable inner flange in the circle in edge of table adaptive, round platform limit and laser output coupling mirror and speculum outer circumferential edge are adaptive in the adjustable outward flange, in the scalable, outward flange is with regulating bolt.
Be furnished with the water collar interface on the scalable outward flange described in the utility model.
Be furnished with 3 on the inside and outside flange of scalable described in the utility model and regulate bolt hole, pitch-row is by 360 ° of five equilibriums.
Metal o-ring described in the utility model adopts flexible metallic material, mainly adopts indium, copper, lead, tin etc., also can substitute with polytetrafluoroethylene or rubber.
Superiority of the present utility model is: 1) metallic seal is the effective way that obtains at present minimum leak rate, and is all better than the effect of the sealing of other any way; 2) the metal problem of exist decomposing at normal temperatures, only normal temperature and atmospheric environment lower surface can oxidation situation, can not have to stick with glue to connect sealing and can produce the problem that organic gas decomposes out.Another kind of advantage with metallic seal is: because metallic seal has certain elasticity, laser lens can be done fine adjustment, can make laser obtain optimum efficiency.Even some variations took place optical cavity after laser had moved for a long time, can make optical cavity reach optimum state again by fine setting.
Description of drawings
Fig. 1 glass tube carbon dioxide laser structural representation.
Fig. 2 is an A-A glass tube mouth of pipe end face structure cutaway view among Fig. 1.
Wherein: (1) glass tube shell, (2) adjustable inner flange, (3) metal o-ring, (4) laser output coupling mirror or speculum, (5) adjustable outward flange, (6) regulate bolt.
The utility model has adopted the basic structure of signal as Fig. 1, structure such as Fig. 2 that portion of one end office (EO) (part among Fig. 1 in the dashed rectangle) amplifies.Because the two ends of glass tube laser are essentially identical, be the place of two eyeglasses of assembling optical cavity.Different is: an end is a speculum, and the other end is an output coupling mirror.Fig. 2 has only shown an end of output coupling mirror, and the other end is basic identical therewith but specifically set forth in this manual.In Fig. 2, (1) is the glass shell; (2) be that the inner flange of regulating screw is arranged; (3) be metal o-ring; (4) laser output coupling mirror (then is speculum at the other end); (5) be to have water collar or not with the outward flange of water collar, if the higher laser tube of power ratio, outward flange can water flowing cooling output coupling mirror or speculum, and the laser that power is low does not just need to have cooled off eyeglass; (6) be 3 and not only connect inside and outside two flanges but also work the bolt of regulating the optical cavity effect.
Clearly, adopted the sealing behind the said structure to be finished by metal o-ring (3), the adjusting of optical cavity is to finish by the acting in conjunction of interior outward flange and adjusting bolt.
Metal o-ring in the utility model (3) also can substitute with the fluorubber of polytetrafluoroethylene or high-quality, and effect also is reasonable, and at this moment the life-span of laser can reach 5000 hours.
Embodiment
The utility model at first is inserted in the shell neck with adjustable inner flange in force, the knot glass tube package mouth edge of table of reburning, or the semicircle that adjustable inner flange is processed into two flexible connections got final product.
The flexible material that metal o-ring adopts mainly contains: indium or aluminium or gold or silver or copper or tin or lead or the like, their alloy also can adopt.During concrete the use is to adopt wherein a kind of metal or its alloy to make sealing ring just can seal well.
Specific embodiment of the utility model is as follows: the glass tube laser of a 1200mm, discharge tube diameter 8mm charges into CO after vacuumizing
2: N
2: the mixed proportion of He is that 1: 3: 5 mist is an operation material, gas pressure is 2.5kPa, trigger voltage 22-25kV, discharge operating voltage 15-18kV, discharging current 20-30mA, optical cavity is that gold-plated completely reflecting mirror and the output transmitance of 3000mm is that 30% plane Ge mirror is formed by radius of curvature, optical cavity eyeglass and shell adopt mode of the present utility model to seal, Laser Power Devices are connected in the sealing back, under discharge condition, optical cavity is adjusted to optimum state, such laser power can reach 80W (power than simple glass pipe laser is high more than 20%), and laser beam mode is a basic mode, and the life-span can reach 10000 hours.
Claims (5)
1, the adjustable carbon dioxide laser of a kind of optical cavity, it is by glass tube laser shell, in the scalable, outward flange, metal o-ring, the laser output coupling mirror, speculum, the adjusting bolt is formed, it is characterized in that: between glass tube laser shell two ends laser output coupling mirror and the speculum and the glass tube mouth of pipe, be provided with metal o-ring, the glass tube mouth of pipe is provided with outer edge of table, and with adjustable inner flange in the circle in edge of table adaptive, round platform limit and laser output coupling mirror and speculum outer circumferential edge are adaptive in the adjustable outward flange, in the scalable, outward flange is with regulating bolt.
2, by the adjustable carbon dioxide laser of the described a kind of optical cavity of claim 1, it is characterized in that: be furnished with the water collar interface on the scalable outward flange.
3, by the adjustable carbon dioxide laser of the described a kind of optical cavity of claim 1, it is characterized in that: be furnished with 3 on the inside and outside flange of scalable and regulate bolt hole, pitch-row is by 360 ° of five equilibriums.
4, by the adjustable carbon dioxide laser of the described a kind of optical cavity of claim 1, it is characterized in that: metal o-ring adopts flexible metallic material.
5, by the adjustable carbon dioxide laser of the described a kind of optical cavity of claim 4, it is characterized in that: described sealing ring also can be with polytetrafluoroethylene or rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200989700U CN201001001Y (en) | 2006-09-14 | 2006-09-14 | Optical cavity adjustable carbon dioxide laser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200989700U CN201001001Y (en) | 2006-09-14 | 2006-09-14 | Optical cavity adjustable carbon dioxide laser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201001001Y true CN201001001Y (en) | 2008-01-02 |
Family
ID=39015404
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2006200989700U Expired - Fee Related CN201001001Y (en) | 2006-09-14 | 2006-09-14 | Optical cavity adjustable carbon dioxide laser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201001001Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101950912A (en) * | 2010-08-31 | 2011-01-19 | 句容市大华激光科技开发有限公司 | Laser tube |
| CN101997262A (en) * | 2010-08-31 | 2011-03-30 | 句容市大华激光科技开发有限公司 | Glass sealed-off CO2 laser |
| CN103276129A (en) * | 2013-06-20 | 2013-09-04 | 济钢集团有限公司 | Novel temperature detection device for smelting molten iron in blast furnace |
| CN103531992A (en) * | 2013-09-29 | 2014-01-22 | 哈尔滨工业大学 | High-voltage window-replaceable laser generating gas cell based on stimulated Raman scattering effect |
| CN104078823A (en) * | 2013-03-30 | 2014-10-01 | 上海神镭激光科技有限公司 | Carbon dioxide laser tube adjusting head |
| WO2015124093A1 (en) * | 2014-02-24 | 2015-08-27 | 马要武 | High air-tightness device |
| CN107039875A (en) * | 2017-06-09 | 2017-08-11 | 吉林省永利激光科技有限公司 | Sealed CO 2 laser |
-
2006
- 2006-09-14 CN CNU2006200989700U patent/CN201001001Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101950912A (en) * | 2010-08-31 | 2011-01-19 | 句容市大华激光科技开发有限公司 | Laser tube |
| CN101997262A (en) * | 2010-08-31 | 2011-03-30 | 句容市大华激光科技开发有限公司 | Glass sealed-off CO2 laser |
| CN104078823A (en) * | 2013-03-30 | 2014-10-01 | 上海神镭激光科技有限公司 | Carbon dioxide laser tube adjusting head |
| CN103276129A (en) * | 2013-06-20 | 2013-09-04 | 济钢集团有限公司 | Novel temperature detection device for smelting molten iron in blast furnace |
| CN103276129B (en) * | 2013-06-20 | 2016-02-03 | 济钢集团有限公司 | A kind of temperature-detecting device of novel blast-furnace smelting molten iron |
| CN103531992A (en) * | 2013-09-29 | 2014-01-22 | 哈尔滨工业大学 | High-voltage window-replaceable laser generating gas cell based on stimulated Raman scattering effect |
| WO2015124093A1 (en) * | 2014-02-24 | 2015-08-27 | 马要武 | High air-tightness device |
| CN107039875A (en) * | 2017-06-09 | 2017-08-11 | 吉林省永利激光科技有限公司 | Sealed CO 2 laser |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Wuhan Dazu Jinshikai Laser System Co., Ltd. Assignor: Chen Qingming Contract record no.: 2011420000041 Denomination of utility model: Optical cavity adjustable carbon dioxide laser Granted publication date: 20080102 License type: Exclusive License Record date: 20110411 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080102 Termination date: 20150914 |
|
| EXPY | Termination of patent right or utility model |